misc: sgi-gru: remove interrupt-context page-table walks
In the Linux kernel, the following vulnerability has been resolved: misc: sgi-gru: remove interrupt-context page-table walks The GRU TLB miss handler walks a process's page tables without holding page-table locks or a reference to the mapped page. It also uses a kernel page-table accessor on user page tables and supports only PMD-level large mappings on x86-64. Remove the direct walker. Send interrupt faults directly to user polling mode so the existing call-OS fallback retries them in process context. Remove the mmap-lock failure statistic that can no longer be incremented.
CVE-2026-90383
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-90383
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "142586409c8be7dc071bb94d7cd2d69ccfd99b6b",
"lessThan": "5a540ced720b4397306337cab34af1af4b30827c",
"versionType": "git"
},
{
"status": "affected",
"version": "142586409c8be7dc071bb94d7cd2d69ccfd99b6b",
"lessThan": "877423f595b60f8fe7c18b64a5d283d9e1732a13",
"versionType": "git"
},
{
"status": "affected",
"version": "142586409c8be7dc071bb94d7cd2d69ccfd99b6b",
"lessThan": "6248eb1833ff0adfdbbadd5f846c2f22e02a01b0",
"versionType": "git"
},
{
"status": "affected",
"version": "142586409c8be7dc071bb94d7cd2d69ccfd99b6b",
"lessThan": "ef81e4a1628ecfb9cfc442de10883f383faf17a1",
"versionType": "git"
},
{
"status": "affected",
"version": "142586409c8be7dc071bb94d7cd2d69ccfd99b6b",
"lessThan": "928a8e9f523df845fc496bcb9811013b67aabec5",
"versionType": "git"
}
],
"programFiles": [
"drivers/misc/sgi-gru/grufault.c",
"drivers/misc/sgi-gru/gruprocfs.c",
"drivers/misc/sgi-gru/grutables.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.27"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.27",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/misc/sgi-gru/grufault.c",
"drivers/misc/sgi-gru/gruprocfs.c",
"drivers/misc/sgi-gru/grutables.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90383
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #48684 · Revision 1
- Added to Heist Feed
- Publisher date